Space Science News

Wednesday, January 22, 2014 - 18:10

Decreases in the Fe/O ratio during solar energetic particle (SEP) event onsets are often observed and attributed to a variety of processes such as the acceleration mechanism, shock geometry, mixtures of particle populations, and interplanetary transport.


Monday, December 9, 2013 - 09:51

A massive impact on the Moon about 4 billion years ago left a 2,500-mile crater, among the largest known craters in the solar system. Smaller subsequent impacts left craters within that crater. Comparing the spectra of light reflected from the peaks of those craters may yield clues to the composition of the Moon’s lower crust and mantle — and would have implications for models of how the Moon formed.


Monday, December 2, 2013 - 23:32

The last solar minimum, which extended into 2009, was especially deep and prolonged. Since then, sunspot activity has gone through a very small peak while the heliospheric current sheet achieved large tilt angles similar to prior solar maxima. The solar wind fluid properties and interplanetary magnetic field (IMF) have declined through the prolonged solar minimum and continued to be low through the current “mini” solar maximum.


Friday, November 29, 2013 - 07:39

A new space mission that will study the universe in a completely new way will be launched by the European Space Agency in 2034. ESA has announced today that it will create an observatory in space to detect ripples in the fabric of space-time, known as gravitational waves, which are created by celestial objects with very strong gravity.


Tuesday, November 19, 2013 - 14:51

Researchers now have stronger evidence of granite on Mars and a new theory for how the granite – an igneous rock common on Earth -- could have formed there, according to a new study. The findings suggest a much more geologically complex Mars than previously believed.


Monday, November 18, 2013 - 12:57

For nearly as long as astronomers have been able to observe asteroids, a question has gone unanswered: Why do the surfaces of most asteroids appear redder than meteorites — the remnants of asteroids that have crashed to Earth?